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The offspring of the supertrees have proved to be genetically superior to those of the average trees.
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更多 “ The offspring of the supertrees have proved to be genetically superior to those of the average trees. ” 相关考题
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Hepatitis A vaccines are especially recommended for those who ()
A、travel abroadB、have other forms of liver diseaseC、have many sexual partnersD、are in high-risk occupations
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Tests have proved this medicine quite effective. Starting from next month, we are going to produce it on a large ().
A、scaleB、range
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Tom _________ himself ________ to have got the medal.
A. considered⋯luckilyB. proved⋯luckilyC. considered⋯luckyD. questioned⋯luckily
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These apples are ________ those I bought yesterday.
A. more superior toB. superior toC. more superior thanD. superior than
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Which of the following about the African bush elephant and the African elephant is true?A．The WCU are interbreeding those elephants.B．They are interbreeding species.C．They are two genetically distant species.D．They depend on each other for survival.
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(b) The Superior Fitness Co (SFC), which is well established in Mayland, operates nine centres. Each of SFC’scentres is similar in size to those of HFG. SFC also provides dietary plans and fitness programmes to its clients.The directors of HFG have decided that they wish to benchmark the performance of HFG with that of SFC.Required:Discuss the problems that the directors of HFG might experience in their wish to benchmark the performanceof HFG with the performance of SFC, and recommend how such problems might be successfully addressed.(7 marks)
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The best definition for the word unfortunates is ______.A. those who have no facial hairB. those who are unluckyC. very young peopleD. very poor people
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Even those who seemed to have good reasons to criticize have ________.A backed downB settled downC run downD beat down
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They are just () you because you have no problems in school.
A.jealous ofB.invisible toC.superior toD.impatient for
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The sharp hearing of a fish _______ by two scientists.
A.have been provedB.have provedC.has provedD.has been proved
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For serious study, an anthropologist ______.A) must not study his own cultureB) is not supposed to have a prejudice against any societyC) should focus on those societies which are historically related to each otherD) is obliged to work only on those societies which have no historical relationship to each other
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Social security tax is collected from（ ）．A．those who have broken the law．B．those who often make trouble．C．those whose lives and property are in danger．D．every citizen living in the area．
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What kind of workers does the writer like to employ（雇佣）? ( )A． Those who have the same ideas as she does．B． Those who get on well with the public．C． Those who can sell her books around the world．D．Those who have big families and new ideas．
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Text3 Genetically engineered crops are safe for humans and animals to eat and have not caused increases in cancer,obesity,gastrointestinal illnesses,kidney disease,autism or allergies,an exhaustive report from the National Academies of Science released Tuesday found.Overall,genetically engineered（GE）crops saved farmers in the United States money but didn't appear to increase crop yields.They have lowered pest populations in some areas,especially in the Midwest but increased the number of herbicide-resistant weeds in others.There's also no evidence that GE crops have affected the population of monarch butterflies,the report said.To gauge whether foods made from genetically modified crops were safe for human consumption,the committee compared disease reports from the United States and Canada,where such crops have been consumed since the mid-1990s,and those in the United Kingdom and westem Europe,where they are not widely eaten.No long-term pattem ofincrease in specific health problems after the introduction of GE foods in the 1990s in the United States and Canada was found.There was no correlation between obesity or Type n diabetes and the consumption of GE foods.Celiac disease,which makes humans intolerant of gluten,increased in both populations.Patterns in the increase in autism spectrum disorder in children were similar in both the United Kingdom and the United States,the committee reported.Overall the report concluded that there were no differences in terms ofa higher risk to human health between foods made from GE crops and those made from conventionally-bred crops.Food&Water Watch,a government accountability group in Washington D.C.,said the committee's ties to the biotech industry and other corporations create conflicts ofinterest and raise questions about the independence ofits work."Critics have long been marginalized,"said Wenonah Hauter,the group's executive director.A significant portion of American consumers are concerned about the safety or other effects of foods made with genetically modified crops,often called GMOs for genetically modified orgarusms.A survey released last year by the NPD Group,a market research firm,found that 57%ofAmericans were concemed that genetically modified foods posed a health hazard.The food industry has taken notice.In 2015,Progressive Grocer,a trade publication,reported that total U.S.sales of food and beverage products labeled"non-GMO"reached$10 billion during 2014.The National Academies report will likely not sway these consumers,said Phil Lempert,a Los Angeles-based food industry analyst."It's an emotional issue,it's not a science issue,"he said.33.The word"marginalized"（Para.6）is closest in meaning toA.condemned.
B.abandoned.
C.neglected.
D.evaluated
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Text3 Genetically engineered crops are safe for humans and animals to eat and have not caused increases in cancer,obesity,gastrointestinal illnesses,kidney disease,autism or allergies,an exhaustive report from the National Academies of Science released Tuesday found.Overall,genetically engineered（GE）crops saved farmers in the United States money but didn't appear to increase crop yields.They have lowered pest populations in some areas,especially in the Midwest but increased the number of herbicide-resistant weeds in others.There's also no evidence that GE crops have affected the population of monarch butterflies,the report said.To gauge whether foods made from genetically modified crops were safe for human consumption,the committee compared disease reports from the United States and Canada,where such crops have been consumed since the mid-1990s,and those in the United Kingdom and westem Europe,where they are not widely eaten.No long-term pattem ofincrease in specific health problems after the introduction of GE foods in the 1990s in the United States and Canada was found.There was no correlation between obesity or Type n diabetes and the consumption of GE foods.Celiac disease,which makes humans intolerant of gluten,increased in both populations.Patterns in the increase in autism spectrum disorder in children were similar in both the United Kingdom and the United States,the committee reported.Overall the report concluded that there were no differences in terms ofa higher risk to human health between foods made from GE crops and those made from conventionally-bred crops.Food&Water Watch,a government accountability group in Washington D.C.,said the committee's ties to the biotech industry and other corporations create conflicts ofinterest and raise questions about the independence ofits work."Critics have long been marginalized,"said Wenonah Hauter,the group's executive director.A significant portion of American consumers are concerned about the safety or other effects of foods made with genetically modified crops,often called GMOs for genetically modified orgarusms.A survey released last year by the NPD Group,a market research firm,found that 57%ofAmericans were concemed that genetically modified foods posed a health hazard.The food industry has taken notice.In 2015,Progressive Grocer,a trade publication,reported that total U.S.sales of food and beverage products labeled"non-GMO"reached$10 billion during 2014.The National Academies report will likely not sway these consumers,said Phil Lempert,a Los Angeles-based food industry analyst."It's an emotional issue,it's not a science issue,"he said.32.According to Paragraphs 3 and 4,we can infer thatA.European people have widely accepted GE crops.
B.GE crops have been introduced to Britain in the 1990s.
C.Celiac disease has relationship to GE crops consumption.
D.People in UK and U.S.have suffered from overweight.
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共用题干
Single-parent Kids Do BestSingle mums are better at raising their kids than two parents-at least in the bird world.Mother zebra finches have to work harder and raise fewer chicks on their own,but they also produce more attractive sons who are more likely to get a mate.The finding shows that family conflict is as important an evolutionary driving force as ecological factors such as hunting and food supply.______(46)In evolutionary terms,the best strategy for any parent in the animal world is to find someone else to care for their offspring,so they can concentrate on breeding again.Soit's normal for parents to try to pass the buck to each other.But Ian Hartley from the University of Lancaster and his team wondered how families solve this conflict,and how the conflict itself affects the offspring.______(47)They compared single females with pairs,by monitoring the amount of food each parent collected,and removing or adding chicks so that each pair of birds was raising four chicks,and each single mum had two-supposedly the same amount of work.But single mums,they found,put in about 25 per cent more effort than females rearing with their mate. ______(48)"The offspring suffer some of the cost of this conflict,"says Hartley.The cost does not show in any obvious decrease in size or weight,but in how attractive they are to the opposite sex.When the chicks were mature,the researchers tested the"fitness"of the male offspring by offering females their choice of partner.______( 49)Sexual conflict has long been thought to affect the quality of care given to offspring,says zoologist Rebecca Kilner at Cambridge University,who works on conflict of parents in birds."But the experimental evidence is not great.The breakthrough here is showing it empirically."More surprising,says Kilner,is Hartley',S statement that conflict may be a strong influence on the evolution of behaviour,clutch size and even appearance."People have not really made that link,"says Hartley.A female's reproductive strategy is usually thought to be affected by hunting and food supply.______(50)______(50)A:To avoid being exploited,mothers with a partner hold back from working too hard if the father is being lazy,and it's the chicks that pay the price.B:To find out,they measured how much effort zebra finch parents put into raising their babies.C:Those males reared by single mums were chosen more often than those from two一parent families.D:With two parents around,there's always a conflict of interests,which can have a detrimental effect on the quality of the offspring.E:Kilner says conflict of parents should now be taken into account as well.F:It turned out that single mums had greater influence on their offspring.
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We__________have proved great adventurers,but we have done the greatest march ever made in the past ten years.A.needn't
B.may not
C.shouldn't
D.mustn't
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单选题Advances in biological knowledge have __________.A
kept pace with those in physicsB
been responsible for the invention of new machinesC
surpassed those in physicsD
lagged behind those in physics
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单选题Which of the following statements is NOT true according to the passage?A
The women having children show a rise in cold infections than those without children.B
People with low income will surely more colds than people with high income.C
Juniors are easier to have colds than seniors.D
It has not been proved scientifically that poor nutrition affects susceptibility to colds.
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单选题Studies have proved that it is not wise to try to lose weight by _____ breakfast.A
skimmingB
skippingC
scrubbingD
slapping
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问答题Studies of skilled language learners have identified specific listening strategies that lead to superior comprehension
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单选题Which of the following statements is true?A
Scientists have solved the mystery about the fish killer.B
More studies need to be made about the fish killer.C
It is proved that the algae are reducing fish populations.D
Humans have already been affected by the toxin.
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单选题Everyone knows that China’s Bristles are of superior quality（）those from other countries.A
withB
toC
forD
than
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单选题According to Mr. Blauer, by using the new technology, _____.A
91% of the women successfully give birth to girlsB
76% of the women get pregnant with boysC
it is more successful for those who want to have girlsD
it is more successful for those who want to have boys
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单选题You _____ all those clothes! We have a washing machine to do that sort of thing.A
needn't have washedB
shouldn't have washedC
must not have washedD
can not have washed
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